Question

length of rectangle is 20cm more than its breadth. If the perimeter is 100cm , find the dimension of the rectangle

Answer 1

Answer:Length = 35cm

Breadth= 15cm

Step-by-step explanation:

Let the breadth of rectangle be = b

Then length of rectangle = 20+b

Perimeter of rectangle = 100 cm

Perimeter of rectangle= 2(l+b)

                               100 = 2 (20+b+b)

                          100/2 =  20+2b

                              50  =  2(10+b)

                            50/2= 10+b

                                25-10= b

                                 b=15cm

Length= 20+b= 20+15=35cm    

Answer 2

Answer:

Step-by-step explanation:

breadth is x length x+20  2(x+x+20) =4x +40=100 100-40=60 4x=60 x=15 breadth is 15 and length is 35